Thermal vacuum nursing bottle



H. H. LANCASTER.

THERMAL VACUUM NURSING BOTTLE.

APPLicATioN FILED MAR.4,1922,

1,43%344, Patented Oct. l?, M922.

by the nursin Patenteelet. il?, i922.,

tomaia n. nnncns'rnrnor PORTLAND, OREGON.

THERMAL VACUUM NURSNG BOTTLE.

Application tiled March Il,

T0 all whom t may concern.1y

f Be it known that I, HoMEn H. LANCASTER, a citizen of the United States, residin at Portland, county .of Multnomah, and tate of Oregon, (whose permanent post-office address is 202 Stevens Building), have invented new and useful Improvements in Thermal Vacuum Nursing Bottles, of which the following is a specification.

My invention consists of a novel, new and useful means of constructing the ordinary vacuum thermal bottles wherein and wherenipple may be attached to the top orfee ing end of the thermal bottle at ,the time the feeding or nursing fluid of the desired temperature is placed within the bottle.

An inclosure cap or jacket is then placed over the nipple and engages a tapered connection between its lower end and the bottle, or a jacket, or case, "covering the bottle in such manner as to form a tlght joint both at the point of contact with the sloping sides of the engagementrand also b coming in contact at the eXtreme end wlth the bottle or jacket itself. An additional insulated cap is then placed over the initial cap or jacket composed of steel, aluminum or other rigid material and having an insulated material placed on the inner side of the outside jacket to prevent the escapement of the desired temperature and having lon its inner surface another jacket of steel, aluminum or other rigid material contacting at its lower end with the outside jacket, thereby sealing the insulated material between the outside and inside jackets, thereby preventing the insulatin material from becoming soured or rancid y comin in .contact with the nursin or feeding uid. attain these objects by the' mechanis illustrated in the accompanying drawing. 'llhe Figure is a section v1ew of the nipple in place on the thermal vacuum nursing bottle, showing a section' view of the inner cap showin its contact with the sloping shoulder to old it'n place and forming a tight joint with the same also illustrating a section of the inner and outer jackets covering the insulating material. To more clearly describe the construction of the device used in v my construction, ll'more specifically refer to 1 is .the outer rigid casing for the thermal 1922. Serial No. 540,969.

uumnurs'ing bottle. 2A is the'vacuum space surroundlnglthe nursing fluid. 3 is the nursing nipple avmg a bead around its lower extremity'. Thistbeadformed on the nursi* ing nipple, fits into the groove 4, thus formlng a tight connection between the bottle and the nipple. r6 1s a rigid cap fitting over the nursing nlpple and contacting with the sloplng side 7 of the thermal vacuum nursing bottle." It w1ll be noticed that this sloping shoulder on the vbottle is below the vacuum space surrounding the bottle, thereby preventlng Lthe flow vof the temperature to the same. 8 is the outer rigid jacket which is to be ornamental as well as covering the outer surface ofthe insulatin material. 8 is preferably made having ormed onits lower end, a screw'for permittin the attaching of the 'same to case 1.- 9 is t e insulating material which is placed on the inner part of cap 8, and 10 is the inner casing contacting vclosely with the inner surface of insulating material 9'. Formed on the lower extremity vacuum nursing bottle. 2 is the thermal vac-- contacts with cap 8`at 12 at which point it is'sealed, thereby formin aA tight hermetic seal between the inner ang outer caps, thereby preventing the contamination of the insulating material by contacting with the feeding fluid. 13 is a suitable rivet'connection between the inner and outer caps at the top of the same. 15 is a cork which may be placed in the upper end of the bottle when the same is not being used as a nursing bottle.

Having thus described m invention, l wish to make the following clai l1. In a thermal vacuum nursing bottle wherein a vacuum nursing bottle hasanannular groove formed therein adjacent the upper end, wherein a nursing nipple has an annular bead received in said groove, a rigid cap inclosin upper end o'the nursing bottle, and a thermal j acketed cap inclosing the aforesaid cap.

2. ln a -thermal vacuum nursing bottle wherein a vacuum nursing bottle has an annular groove formed therein'adjacent the upper end, wherein a nursing 'nipple has an annular bead received in said'groove, a rigid cap inclosin the nipple and engaging the upper end o the nursmg bottle, and a therms therefor the' nipple and engaging the naular groove formed therein adjacent the upper end, wherein a nursing nipple has an annular bead received in said groove, a rigid cap inelosin the nipple and engaging the upper end o the nursing bottle, and a thermal jacketed cap inclosing the aforesaid cap and threaded onto the `nursing bottle, the thermal acketed cap embodying inner and outer spaced Walls and an insulating material between the Walls.

4. In a thermal vacuum nursing bottle wherein a vacuum nursing bottle has an annular groove formed therein adjacent the upper end, wherein a nursing nipple has an annular bead received in said groove, a rigid cap inclosing the nipple and engaging the upper end of the nursing bottle,'a thermal jacketed cap inclosing the aforesaid cap and threadedv onto the nursing bottle, the thermal jacketed cap embodying inner and outer spaced Walls and an insulating material between the Walls, and a depending threaded flange carried by the jacketed cap.

HOMER H. LANCASTER. 

